.topics-main {
    min-height: 400px;
}

.topics-main .head h1 {
    font-size: 24px;
    color: #454545;
}

.topics-main .head p {
    color: #5a5959;
}

.topics-main .tool {
    text-align: right;
}

.topics-main .tool a {
    background-color: #cfe3e5;
    border-radius: 13px;
    color: #2ca7b0;
    padding: 0 8px;
}

.topics-main ul li {
    border-bottom: 1px dashed #bfbfbf;
    display: inline-block;
    margin-bottom: 25px;
    padding-bottom: 25px;
    width: 100%;
}

.topics-main ul li img {
    border-radius: 5px;
    width: 180px;
}

.topics-main ul dl {
    float: left;
    padding-left: 16px;
    width: 495px;
}

.topics-main ul dl dt {
    font-size: 16px;
    margin-bottom: 10px;
}

.topics-main ul dl dd {
    font-size: 12px;
    line-height: 22px;
}
